Please use this identifier to cite or link to this item: http://bura.brunel.ac.uk/handle/2438/22334
Title: Evidence for Higgs boson decay to a pair of muons
Authors: Sirunyan, AM
Tumasyan, A
Adam, W
Bergauer, T
Dragicevic, M
Erö, J
Escalante Del Valle, A
Frühwirth, R
Jeitler, M
Krammer, N
Lechner, L
Liko, D
Mikulec, I
Pitters, FM
Rad, N
Schieck, J
Schöfbeck, R
Spanring, M
Templ, S
Waltenberger, W
Wulz, CE
Zarucki, M
Chekhovsky, V
Litomin, A
Makarenko, V
Suarez Gonzalez, J
Darwish, MR
De Wolf, EA
Di Croce, D
Janssen, X
Kello, T
Lelek, A
Pieters, M
Rejeb Sfar, H
Van Haevermaet, H
Van Mechelen, P
Van Putte, S
Van Remortel, N
Blekman, F
Bols, ES
Chhibra, SS
D’Hondt, J
De Clercq, J
Lontkovskyi, D
Lowette, S
Marchesini, I
Moortgat, S
Morton, A
Müller, D
Python, Q
Tavernier, S
Van Doninck, W
Van Mulders, P
Beghin, D
Bilin, B
Clerbaux, B
De Lentdecker, G
Dorney, B
Favart, L
Grebenyuk, A
Kalsi, AK
Makarenko, I
Moureaux, L
Pétré, L
Popov, A
Postiau, N
Starling, E
Thomas, L
Vander Velde, C
Vanlaer, P
Vannerom, D
Wezenbeek, L
Cornelis, T
Dobur, D
Gruchala, M
Khvastunov, I
Niedziela, M
Roskas, C
Skovpen, K
Tytgat, M
Verbeke, W
Vermassen, B
Vit, M
Bruno, G
Bury, F
Caputo, C
David, P
Delaere, C
Delcourt, M
Donertas, IS
Giammanco, A
Lemaitre, V
Mondal, K
Prisciandaro, J
Taliercio, A
Teklishyn, M
Vischia, P
Wertz, S
Wuyckens, S
Alves, GA
Keywords: Hadron-Hadron scattering (experiments);Higgs physics;Lepton production
Issue Date: 25-Jan-2021
Publisher: Springer
Citation: The CMS collaboration., Sirunyan, A.M., Tumasyan, A. et al. Evidence for Higgs boson decay to a pair of muons. J. High Energ. Phys. 2021, 148 (2021).
Abstract: Evidence for Higgs boson decay to a pair of muons is presented. This result combines searches in four exclusive categories targeting the production of the Higgs boson via gluon fusion, via vector boson fusion, in association with a vector boson, and in association with a top quark-antiquark pair. The analysis is performed using proton-proton collision data at s√ = 13 TeV, corresponding to an integrated luminosity of 137 fb−1, recorded by the CMS experiment at the CERN LHC. An excess of events over the back- ground expectation is observed in data with a significance of 3.0 standard deviations, where the expectation for the standard model (SM) Higgs boson with mass of 125.38 GeV is 2.5. The combination of this result with that from data recorded at s√ = 7 and 8 TeV, corresponding to integrated luminosities of 5.1 and 19.7 fb−1, respectively, increases both the expected and observed significances by 1%. The measured signal strength, relative to the SM prediction, is 1.19+0.40−0.39(stat)+0.15−0.14(syst). This result constitutes the first evidence for the decay of the Higgs boson to second generation fermions and is the most precise measurement of the Higgs boson coupling to muons reported to date.
URI: http://bura.brunel.ac.uk/handle/2438/22334
DOI: http://dx.doi.org/10.1007/JHEP01(2021)148
ISSN: 1029-8479
Appears in Collections:Dept of Electronic and Computer Engineering Research Papers

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